HÃY CHỌN MỘT ĐÁP ÁN ĐÚNG NHẤT (A, B, C HOẶC D) CHO MỖI CÂU SAU

45. - DE THI TUYEN TIENG ANH 12 NHE
DE THI TUYEN TIENG ANH 12 NHE

45. Before he ________ to bed, he ________ his homework.

A. went/ has done B. went/ had done C. goes/ have done D. goes/ did